code.delx.au - gnu-emacs/blob - src/m/ibm370aix.h

   1 /* ibm370.h
   2    For IBM 3090 type systems running AIX370.
   3    Concocted by Scott Schwartz <schwartz@cs.psu.edu>
   4    Copyright (C) 1985, 1986 Free Software Foundation, Inc.
   5
   6 This file is part of GNU Emacs.
   7
   8 GNU Emacs is distributed in the hope that it will be useful,
   9 but WITHOUT ANY WARRANTY.  No author or distributor
  10 accepts responsibility to anyone for the consequences of using it
  11 or for whether it serves any particular purpose or works at all,
  12 unless he says so in writing.  Refer to the GNU Emacs General Public
  13 License for full details.
  14
  15 Everyone is granted permission to copy, modify and redistribute
  16 GNU Emacs, but only under the conditions described in the
  17 GNU Emacs General Public License.   A copy of this license is
  18 supposed to have been given to you along with GNU Emacs so you
  19 can know your rights and responsibilities.  It should be in a
  20 file named COPYING.  Among other things, the copyright notice
  21 and this notice must be preserved on all copies.  */
  22
  23
  24 /* The following three symbols give information on
  25  the size of various data types.  */
  26
  27 #define SHORTBITS 16            /* Number of bits in a short */
  28
  29 #define INTBITS 32              /* Number of bits in an int */
  30
  31 #define LONGBITS 32             /* Number of bits in a long */
  32
  33 /* Define BIG_ENDIAN iff lowest-numbered byte in a word
  34    is the most significant byte.  */
  35
  36 #define BIG_ENDIAN
  37
  38 /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
  39  * group of arguments and treat it as an array of the arguments.  */
  40
  41 #define NO_ARG_ARRAY
  42
  43 /* Define WORD_MACHINE if addresses and such have
  44  * to be corrected before they can be used as byte counts.  */
  45
  46 /* #define WORD_MACHINE */
  47
  48 /* Now define a symbol for the cpu type, if your compiler
  49    does not define it automatically:
  50    Ones defined so far include vax, m68000, ns16000, pyramid,
  51    orion, tahoe, APOLLO and many others */
  52 /* high-c defines _AIX370 */
  53
  54 /* Use type int rather than a union, to represent Lisp_Object */
  55 /* This is desirable for most machines.  */
  56
  57 #define NO_UNION_TYPE
  58
  59 /* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend
  60    the 24-bit bit field into an int.  In other words, if bit fields
  61    are always unsigned.
  62
  63    If you use NO_UNION_TYPE, this flag does not matter.  */
  64
  65 #define EXPLICIT_SIGN_EXTEND
  66
  67 /* Data type of load average, as read out of kmem.  */
  68
  69 #define LOAD_AVE_TYPE double
  70
  71 /* Convert that into an integer that is 100 for a load average of 1.0  */
  72
  73 /* XXX */
  74 #define LOAD_AVE_CVT(x) (int)(((double) (x)) * 100.0 / 1.0)
  75
  76 /* Define CANNOT_DUMP on machines where unexec does not work.
  77    Then the function dump-emacs will not be defined
  78    and temacs will do (load "loadup") automatically unless told otherwise.  */
  79
  80 #define CANNOT_DUMP
  81 #define CANNOT_UNEXEC
  82
  83 /* Define VIRT_ADDR_VARIES if the virtual addresses of
  84    pure and impure space as loaded can vary, and even their
  85    relative order cannot be relied on.
  86
  87    Otherwise Emacs assumes that text space precedes data space,
  88    numerically.  */
  89
  90 #define VIRT_ADDR_VARIES
  91
  92 /* Define C_ALLOCA if this machine does not support a true alloca
  93    and the one written in C should be used instead.
  94    Define HAVE_ALLOCA to say that the system provides a properly
  95    working alloca function and it should be used.
  96    Define neither one if an assembler-language alloca
  97    in the file alloca.s should be used.  */
  98
  99 /* #define C_ALLOCA */
 100 #define HAVE_ALLOCA
 101
 102 #ifndef NO_SHORTNAMES
 103 #include <alloca.h>
 104 #include <setjmp.h>
 105 #endif
 106
 107 /* Define NO_REMAP if memory segmentation makes it not work well
 108    to change the boundary between the text section and data section
 109    when Emacs is dumped.  If you define this, the preloaded Lisp
 110    code will not be sharable; but that's better than failing completely.  */
 111
 112 #define NO_REMAP
 113
 114 /* Don't try to include sioctl.h.  */
 115 #undef NEED_SIOCTL
 116 /* That probably means we shouldn't try ptem.h either.  */
 117 #undef NEED_PTEM_H
 118
 119 /* Note we do not define IBMAIX, since the `hft' features
 120    don't exist on this machine.  */
 121
 122 #define LIBS_DEBUG -lg
 123 #ifndef LD_SWITCH_SYSTEM
 124 #define LD_SWITCH_SYSTEM
 125 #endif
 126
 127 #define LIBS_SYSTEM -lbsd
 128
 129 /* The symbol in the kernel where the load average is found
 130    is named _avenrun.  */
 131
 132 #undef LDAV_SYMBOL
 133 #define LDAV_SYMBOL "_avenrun"
 134
 135 /* define MAIL_USE_FLOCK if the mailer uses flock
 136    to interlock access to /usr/spool/mail/$USER.
 137    The alternative is that a lock file named
 138    /usr/spool/mail/$USER.lock.  */
 139 #define MAIL_USE_FLOCK
 140
 141 /* Define CLASH_DETECTION if you want lock files to be written
 142    so that Emacs can tell instantly when you try to modify
 143    a file that someone else has modified in his Emacs.  */
 144 #define CLASH_DETECTION
 145
 146 #define BSTRING
 147
 148 /* First pty name is /dev/ptyp0.  */
 149 #define FIRST_PTY_LETTER 'p'
 150
 151 /*
 152  *      Define HAVE_TIMEVAL if the system supports the BSD style clock values.
 153  *      Look in <sys/time.h> for a timeval structure.
 154  */
 155 #define HAVE_TIMEVAL
 156
 157 /*
 158  *      Define HAVE_SELECT if the system supports the `select' system call.
 159  */
 160 #define HAVE_SELECT
 161
 162 /*
 163  *      Define HAVE_PTYS if the system supports pty devices.
 164  */
 165 #define HAVE_PTYS
 166
 167 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
 168
 169 #define HAVE_SOCKETS